Angewandte Chemie International Edition,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 12, 2025
Metal-organic
frameworks
(MOFs)
have
been
proven
promising
ultralong
room
temperature
phosphorescence
(RTP)
materials
for
anti-counterfeit
due
to
their
unique
optical
properties.
However,
it
remains
a
major
challenge
achieve
the
desired
phosphorescent
properties
limited
regulatory
methods
and
indistinct
mechanism.
Herein,
coordination
solvent
second
metal
ion
co-strategy
is
firstly
proposed
prepare
seven
robust
heterometallic-organic
(HMOFs)
with
two
configurations:
ZnMg/Ca-sol
[sol
=
H2O,
dimethylformamide
(DMF),
dimethylacetamide
(DMA),
formyldiethylamine
(DEF)]
ZnSr/Ba-H2O,
exhibiting
different
RTP.
The
tunable
lifetimes
within
14.5-195.4
ms
are
achieved
gradually
by
altering
type
of
alkaline
earth
metals,
solvent,
hydrogen-bonding
in
HMOFs.
Significantly,
theoretical
calculations
reveal
that
promotion
spin-orbit
coupling
heavy
metals
rigid
constraint
on
skeleton
result
excellent
balance
between
high
quantum
yield
(ФP)
long
lifetime,
especially
ZnSr-H2O
(6.8%,
195.4
ms).
Depending
wide-range
tuning
RTP
great
stability,
HMOFs
successfully
applied
spatial-time
resolved
anti-counterfeiting
multi-level
information
encryption.
This
work
may
provide
new
approach
designing
target
while
resolving
contradiction
ФP
lifetime.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 26, 2025
Abstract
Polymeric
room
temperature
phosphorescence
(RTP)
materials
have
been
well
developed
and
utilized
in
various
fields.
However,
their
fast
thermo‐
moisture‐quenching
behavior
highly
limit
applications
certain
harsh
environments.
Therefore,
the
preparation
of
with
moisture‐resistant
is
greatly
attractive.
Compared
common
water‐soluble
polymers,
cycloolefin
copolymers
(COC)
show
outstanding
hydrophobicity
higher
rigidity,
even
at
elevated
temperatures,
being
as
a
promising
candidate
to
prepare
suppressed
behavior.
Herein,
type
COC
bearing
hydroxyl,
ester,
adamantanyl
side
groups
synthesized.
After
dispersing
phosphors
into
this
matrix,
resultant
composites
exhibit
full‐color
RTP
lifetimes
249–590
ms.
Their
luminescence
does
not
obvious
quenching
water,
acid,
alkalinous,
reductive,
oxidative
In
presence
both
rigid
matrix
phosphors,
corresponding
composite
displays
high‐temperature
performance.
Even
378
K,
can
emit
lifetime
40–98
The
these
COC‐based
for
imaging,
information
encryption,
anti‐counterfeiting
are
thus
explored.
Nano Letters,
Год журнала:
2024,
Номер
24(42), С. 13307 - 13314
Опубликована: Окт. 10, 2024
Long-wavelength
afterglow
emitters
are
crucial
for
optoelectronics
and
information
security;
however,
it
remains
a
challenge
in
achieving
high
luminescence
efficiency
due
to
the
lack
of
effective
modulation
electronic
coupling
nonradiative
transitions
singlet/triplet
excitons.
Here,
we
demonstrate
an
organic-carbon-dot
(CD)
hybrid
system
that
operates
via
space-confined
energy
transfer
strategy
obtain
bright
emission
centered
at
600
nm
with
near-unity
efficiency.
Photophysical
characterization
theoretical
calculation
confirm
efficient
can
be
assigned
synergistic
effect
intermolecular
from
triplet
excitons
CDs
singlets
subluminophores
intense
restraint
decay
losses
singlet/triplet-state
rationally
rigidification
amination
modification.
By
utilizing
precursor
engineering,
yellow
near-infrared
575
680
efficiencies
94.4%
45.9%
has
been
obtained.
Lastly,
these
highly
emissive
powders
enable
superior
performance
lighting
security.
Dalton Transactions,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
CDs-LDHs-PVA
composite
achieves
RTP
with
205.24
ms
lifetime
and
5.04%
quantum
yield,
showing
excitation-dependent
emission
for
optical
anti-counterfeiting
encryption.
Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 17, 2025
Abstract
Preparing
multi‐color
and
multi‐stimuli‐responsive
circularly
polarized
luminescence
(CPL)
materials
understanding
the
evolution
of
chirality
through
visualized
mode
is
still
a
challenge.
Here,
an
encapsulation
engineering
approach
chiral
metal‐organic
frameworks
(MOFs)
proposed
to
confine
guest
emitters
realize
CPL.
Based
on
triplet‐triplet
energy
transfer
(TTET),
white
CPL
near‐infrared
room
temperature
phosphorescence
(NIR‐CPRTP)
can
be
obtained
by
introducing
pyrene
derivatives.
With
introduction
containing
vinylpyrene
group,
light‐
thermal‐responsive
with
signal
inversion
realized
reversible
[2+2]
cycloaddition
reaction
between
ligand
triggered
visible
light/ultraviolet
light
or
heating.
Furthermore,
excitation‐dependent
successfully
achieved
incorporation
excited
state
intramolecular
proton
(ESIPT)
molecules
into
nanopores.
Importantly,
magnification
greatly
enhanced
spatial
confinement,
accurate
host‐guest
single
crystal
structures
FLT@DCF‐12
FLT@LCF‐12
provide
understand
mechanism
transfer,
amplification
responsiveness.
White
LED
multiple
information
display
encryption
are
further
demonstrated.
This
breakthrough
provides
new
perspective
guest‐encapsulated
MOFs
contributes
construction
stimuli‐responsive
CPL‐active
materials.
ABSTRACT
Hepatectomy
is
a
critical
treatment
for
liver
cancer,
but
achieving
complete
tumor
removal
remains
challenging.
The
development
of
tumor‐targeting
probes
capable
accurately
identifying
locations
and
providing
real‐time
intraoperative
navigation
significant
clinical
importance.
We
synthesize
tumor‐targeted
probe
by
conjugating
fibroblast
activation
protein
inhibitor
(FAPI)
with
near‐infrared
organic
room
temperature
phosphorescence
(RTP)
material.
then
analyze
its
surgical
performance
in
the
cancer
model
imaging
fresh
patient‐derived
samples.
In
vivo
validation
reveals
that
exhibits
optimal
intensity
within
48
h
(8.53
×
10
5
p
s
−1
cm
−2
sr
)
an
average
signal‐to‐noise
ratio
16.
could
effectively
identify
FAP‐positive
samples
from
patients.
successful
application
phosphorescence‐guided
surgery
suggests
RTP
holds
translational
value
serve
as
auxiliary
tool
cancer.
Chemical Communications,
Год журнала:
2024,
Номер
60(70), С. 9328 - 9339
Опубликована: Янв. 1, 2024
This
article
summarizes
the
potential
of
TPP
salts
in
tuning
RTP
properties
and
their
applications
multi-level
information
encryption,
high-level
anticounterfeiting
tags,
X-ray
scintillators.
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 26, 2024
Abstract
Phosphorescent
supramolecular
hydrogels
are
currently
a
prevalent
topic
for
their
great
promise
in
various
photonic
applications.
Herein,
an
efficient
near‐infrared
(NIR)
phosphorescence
hydrogel
is
reported
via
the
hierarchical
assembly
strategy
aqueous
solution,
which
fabricated
from
amphiphilic
bromonaphthalimide
pyridinium
derivative
(G),
exfoliated
Laponite
(LP)
nanosheets,
and
polymeric
polyacrylamide
(PAAm).
Initially,
G
spontaneously
self‐aggregates
into
spherical
nanoparticles
covered
with
positively
charged
units
emits
single
fluorescence
at
410
nm.
Driven
by
electrostatic
interactions
negatively
subsequently
function
as
cross‐linked
binders
coassemble
LP
engendered
red
room‐temperature
(RTP)
up
to
620
Benefiting
hydrogen‐bonding
interactions‐mediated
physical
cross‐linkage,
further
introduction
of
PAAm
not
only
significantly
elevates
mechanical
strength
showing
fast
self‐healing
capability,
but
also
increases
lifetime
2.49
4.20
ms,
especially
generating
even
higher
temperature
(
τ
363
K
=
2.46
ms).
Additionally,
RTP
energy
transfer
occurs
after
doping
small
amount
organic
dye
heptamethine
cyanine
(IR780)
acceptor
hydrogels,
resulting
long‐lived
NIR
emission
823
nm
high
donor/acceptor
ratio,
successfully
applied
cell
labeling
window.
